Yamaguchi is feeling down. His friends know about his self-harming. They decide to throw him the best birthday party ever, but does it turn out they way they were hoping? Or does everything go wrong?

Although they hated each other when they first met, Kageyama and Hinata have begun to warm up to each other now that they go to the same school and volleyball team. Kageyama decided to have Hinata hang out with him but something happens to prevent that.